4x8k

X-ray diffraction
2.2Å resolution

Mycobacterium tuberculosis RbpA-SID in complex with SigmaA domain 2

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-161486 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
RNA polymerase sigma factor SigA Chain: A
Molecule details ›
Chain: A
Length: 129 amino acids
Theoretical weight: 14.79 KDa
Source organism: Mycobacterium tuberculosis
Expression system: Escherichia coli
UniProt:
  • Canonical: P9WGI1 (Residues: 236-364; Coverage: 24%)
Gene names: MTCY05A6.24, Rv2703, mysA, rpoD, rpoV, sigA
Sequence domains:
RNA polymerase-binding protein RbpA Chain: B
Molecule details ›
Chain: B
Length: 89 amino acids
Theoretical weight: 10.5 KDa
Source organism: Mycobacterium tuberculosis
Expression system: Escherichia coli
UniProt:
  • Canonical: P9WHJ5 (Residues: 23-111; Coverage: 80%)
Gene names: Rv2050, rbpA
Sequence domains: RNA polymerase-binding protein

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X29A
Spacegroup: P3121
Unit cell:
a: 84.459Å b: 84.459Å c: 73.701Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.197 0.195 0.231
Expression system: Escherichia coli